$120 Find Cheap Flights from Seattle to Massachusetts - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Massachusetts departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Massachusetts.
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Cheap Flights from Seattle to Massachusetts

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Boston1 stop$316
Albany
Albany1 stop$308
Boston
Boston1 stop$316
Albany
Albany1 stop$308

Book Cheap Seattle to Massachusetts Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Massachusetts that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Massachusetts

Tue, Aug 25 - Tue, Sep 1
American Airlines Logo
10:00 pm - 10:20 am
SEA
-
BDL
9h 20m
1 stop
American Airlines Logo
5:41 pm - 11:59 pm
BDL
-
SEA
9h 18m
1 stop
$239American Airlines
Thu, Sep 24 - Tue, Sep 29
American Airlines Logo
11:59 pm - 12:02 pm
SEA
-
BDL
9h 03m
1 stop
American Airlines Logo
9:03 am - 3:17 pm
BDL
-
SEA
9h 14m
1 stop
$263American Airlines
Tue, Aug 18 - Wed, Aug 26
Delta Logo
11:59 pm - 10:54 am
SEA
-
BDL
7h 55m
1 stop
Delta Logo
5:05 pm - 10:05 pm
BDL
-
SEA
8h 00m
1 stop
$286Delta
Fri, Aug 7 - Sat, Aug 29
Delta Logo
6:05 am - 6:12 pm
SEA
-
BDL
9h 07m
1 stop
Delta Logo
5:06 pm - 10:05 pm
BDL
-
SEA
7h 59m
1 stop
$309Delta
Fri, Sep 18 - Mon, Sep 21
JetBlue Logo
9:40 pm - 10:46 am
SEA
-
BOS
10h 06m
1 stop
JetBlue Logo
6:59 pm - 10:38 pm
BOS
-
SEA
6h 39mnonstop
$316JetBlue
Sat, Sep 19 - Tue, Sep 22
JetBlue Logo
11:55 pm - 8:19 am
SEA
-
BOS
5h 24mnonstop
JetBlue Logo
1:00 pm - 8:42 pm
BOS
-
SEA
10h 42m
1 stop
$320JetBlue
Tue, Aug 25 - Tue, Sep 1
Alaska Airlines Logo
10:04 am - 6:09 am
SEA
-
BOS
17h 05m
1 stop
Alaska Airlines Logo
7:59 pm - 11:12 pm
BOS
-
SEA
6h 13mnonstop
$322Alaska Airlines
Thu, Sep 10 - Tue, Sep 15
Alaska Airlines Logo
6:51 pm - 6:09 am
SEA
-
BOS
8h 18m
1 stop
Alaska Airlines Logo
5:42 pm - 10:39 pm
BOS
-
SEA
7h 57m
1 stop
$327Alaska Airlines
Wed, Oct 14 - Tue, Oct 20
United Airlines Logo
11:14 pm - 9:37 am
SEA
-
BDL
7h 23m
1 stop
United Airlines Logo
5:03 pm - 10:56 pm
BDL
-
SEA
8h 53m
1 stop
$349United Airlines
Tue, Aug 25 - Tue, Sep 1
United Airlines Logo
3:30 pm - 9:37 am
SEA
-
BDL
15h 07m
2 stops
United Airlines Logo
4:50 pm - 10:43 pm
BDL
-
SEA
8h 53m
1 stop
$354United Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Massachusetts flights

Get data-powered insights and trends into flights from Seattle to Massachusetts to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Massachusetts?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Massachusetts departing in September.

What is the cheapest Seattle to Massachusetts flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Massachusetts from Seattle found in the last 5 days was to Boston, at $213 round-trip. The most popular route is from Seattle (SEA) to Boston (BOS), and the cheapest round-trip airline ticket found on this route in the last 5 days was $213.

What is the cheapest time of day to fly to Massachusetts?

The average price for all round-trip flights from Seattle to Massachusetts depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Massachusetts is generally in the afternoon, when round-trip flights cost $254 on average. Morning departures are around 22% more expensive than evening flights, on average. The most expensive time of day to fly to Massachusetts is generally in the morning, which is peak travel time and where the average cost of a ticket is $473.

Can I save money by flying with a layover from Seattle to Massachusetts?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $470, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Seattle to Massachusetts?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Massachusetts, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Massachusetts is March, when tickets cost $98 (return) on average. On the other hand, the most expensive months are December and May, when the average cost of round-trip tickets is $970 and $720 respectively.

What’s the cheapest day of the week to fly from Seattle to Massachusetts?

The average price of all round-trip flights from Seattle to Massachusetts clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Seattle to Massachusetts, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Massachusetts, Wednesday is the cheapest day to fly and Monday is the most expensive.

How far in advance should I book a flight from Seattle to Massachusetts?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Massachusetts, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Massachusetts, you should book around 4 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$120
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Seattle to Hartford

Flights from Seattle to Massachusetts: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Seattle to Massachusetts 
rsmrostovFlew with Alaska Airlines
SEA
-
BOS
Jan 2026
If you have a small personal bag and a personal item you will be hustled to consolidate snacks on the flight of very poor so bring your own food and if you have an Android phone you likely will have issues connecting to Wi-Fi on the plane especially if the connection was dropped in the middle of watching a movie and then you attempt to reinstate it sometimes you have to clear browsing history and cookies becomes painful
Verified travelerFlew with Alaska Airlines
SEA
-
BOS
Jul 2024
Generally Alaska Airlines have very friendly and helpful people in my experience. They don’t have TVs in all planes so make sure to download their app if you want entertainment on the plane.

FAQs - booking Massachusetts flights

  • How does KAYAK find such low prices on flights from Seattle to Massachusetts?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Massachusetts.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Massachusetts?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Massachusetts?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Seattle to Massachusetts with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Massachusetts?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seattle to Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Massachusetts

  • Looking for a cheap flight? 25% of our users found tickets from Seattle to the following destinations at these prices or less: Boston $225 one-way - $383 round-trip

Reviews of the top 5 airlines serving from Seattle to Massachusetts

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Massachusetts. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Massachusetts? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12508 reviews
7.8Comfort
7.0Entertainment
8.1Boarding
7.0Food
8.5Crew
Airline reviews

Crews were friendly enough. To help the airline I checked my carry on baggage. Typical "gonna be a full flight we need 19 carry on bags to be checked to help out". So I helped out only to have to wait 30+ mins for my luggage and risked not getting to my car rental on time. The return flight was delayed. Kept hearing employees say something about "they didn't have any power" which is kind of concerning. The air flow and air conditioning was insufficient. It was warm and stuffy during the flight. Plus no free wi-fi......Booooooo!

4.0 OkayShaun, Jun 2026
SEA - OKC
Read more Alaska Airlines reviews

Crews were friendly enough. To help the airline I checked my carry on baggage. Typical "gonna be a full flight we need 19 carry on bags to be checked to help out". So I helped out only to have to wait 30+ mins for my luggage and risked not getting to my car rental on time. The return flight was delayed. Kept hearing employees say something about "they didn't have any power" which is kind of concerning. The air flow and air conditioning was insufficient. It was warm and stuffy during the flight. Plus no free wi-fi......Booooooo!

Didn’t even get on, check my flight to Seattle for details. Do better Alaska.

A five hour nonstop flight traveling over a few time zones and over the dinner hour and you get a small bag of pretzels. And no screens to watch movies. I

The flight kept getting delayed due to a maintenance issue. That happens, but there is no excuse for changing the gate FIVE TIMES, including one time nearly all the way across SeaTac. After we were delayed for 3+ hours, they did send us (via email) a $12 meal voucher...except you can't find a $12 meal anywhere in that airport, unless you consider a bag of M&M's and a bottle of water a meal. The plane had one problem after another but finally took off 4.5 hours late. This caused us to miss our hotel shuttle at ORD (they didn't run past midnight and it was 3 am) so we had to wait 25 minutes and pay for an Uber. I did get a $50 flight voucher from Alaska...big deal. Barely covers my Uber ride that I shouldn't have needed.

I upgraded to a better seat and it was much more comfortable. Nobody serves food anymore and actually on a 2+ hr flight not necessary. I didn’t even get water.

Check in & bag drop was straightforward. Alaskair changed the gate approx 40 min before departure, and I only became aware due to Google wallet update to my boarding pass. Had to move from gate N1 to C9 which required use of the Train, luckily I had time available.

Super impressed by staff courtesy, and assistance, Flight was one of the best I've had despite turbulence... Will definitely be flying Alaskan air as my preferred choice

My boarding passes were pulled from my Apple wallet and my 3 family members who were all sitting together in the same row all got put middle seats and were one of the last to board and barely were able to get our bags in the luggage bins.

Was disappointed not to have known Alaska Air offers no music, no flight aware, no films.

I was surprised by everything. The cleanliness, the punctuality, the friendliness of the crew… and the Wi-Fi! Please keep up the good work.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

My flight yesterday evening was delayed 3.5 hours with no water or food service. Poor experience

The tray table was broken and the food was terrible.

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

The first class flight attendant was awful to everyone. Very rude; no customer service. She should not be working in first class.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

The cabin temperature was nice and cool. The wifi was not working.

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

Flight delayed two hours , missed connection flight then connection cancelled- horrible experience with hotel

Omg the disaster at the security was on another level! “Go to this end, sorry closed now, go to that end”. Ridiculous! This took over an hour! As far as the airline was concerned although I booked nearly a year ago I couldn’t get my bag tag - stand in another 15 minute line or my seat on Hawaiian Airlines- 5 more minutes! Then my TSA status was denied. Like what the heck! Makes a person not want to travel with this amount of incompetence

The Honolulu Hub needs 2 to 3 times the amount of things to do as well as shuttles that transport to/from gates and terminals. Arriving from OCONUS locations; transferring to CONUS locations its a miserable experience. Fetching and re-checking bags, then returning to a gate across the airport take longer than any other large airport. If youre confused by what I mean, the process goes like this: Disembark plane Walk a mile to the main terminal Walk half a mile to baggage claim Wait 40 minutes for baggage Walk a mile to re-check-in baggage Wait 20 minutes for checking in those bags Fo back through the wrong TSA line because the signage is poor Almost miss the connecting flight because your gate is across the airport.

The checking was disaster, the crew wasn't behave well. It took us two hours to check in, after that thr line at the TSA was long, we barely make the flight. Bad airline

Fabulous if you have a portable wheelchair. They can store it in the galley and you can just walk out with it. Really nice and the flat seats are just incredible, very nice. iPads for movies, also pretty nice,

The crew were exceptionally nice and accommodating. My wife was tired after the flight from Haneda, Tokyo. They let her sleep and served her dinner later after she woke up, before we landed in PDX.

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

There was no wifi available at any price -- the plane did not have wifi equipment. Movie choices were blah - hits from the past; nothing recent. The food was blah airplane food. They should have had Mai Tai drinks available as per the Hawaiian Airlines magazine, but they had none onboard.

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Flight was delayed by 6 hours... the level of incompetence was truly astounding. I won't be flying American Airlines again. I don't care if AA is direct and there is a layover with another airline, I'll take the layover.

Leave on time. We waited on the plane for hour hours and it was hot and smelly

Two hours delay, probably one hour because they didn’t bring catering and they had to bring water in board. There a change of aircraft. But delays galore at CLT so it must be a CLT and/or AA operation issue. The 1 hr additional delays because nobody could bring 2 packs of water sooner is probably the best example of this airline operates

Flight was delayed 5 hours. Initial reason for delay was 'maintenance' - which makes sense. Then, the additional 2 hours continued to say it was maintenance - when I know EWR had a 2 hour delay. AA did not say that. Additionally, when boarding, there was only one agent at the counter for a long time - until another came to help. After boarding, we had to wait another 45 minutes due to 'no catering'. So while we waited for catering, AA continued to board additional passengers - which seemed odd - and raised questions about what really was going on. I sat in First Class. During the flight, the flight crew allowed a significant number of non-First Class passengers to use the front bathroom - which created a very crowded environment in First Class which was uncomfortable. This also delayed First Class passengers from using the bathroom. Overall, horrible experience.

The Charleston, WV airport was cute. Very good staff and small enough to feel comfortable. The plane had more leg room than bigger planes. Much more comfortable.

Another uncoordinated American experience. Always surprises me at DFW for them of all places. Have to take this flight as there are no other good time options. We knew from the start that something was wrong, but the pilot wouldn't tell us. I just watched my Kayak app grow the delay by 10 minutes as it went to 3.5 hours. They were uncoordinated with maintenance (as maintenance, when finally arriving, knew within 15 minutes the plane wasn't going. No 'sorry' or 'this is what is going on' comment. The pilot seemed unfazed / didn't care about the process we were going through.

The seats. The seat in front of me was awful and when the guy sat down, it flew back and hit my head when I was putting my backpack under the seat, It didn't make for a pleasant experience,

I’ve got 31F seat and window seat . My 2 co passengers was AA crew members and they were very rude attitude and when I was going to use bathroom their gestures was very different and awkward and the guy beside me completely occupied the hand rest and I was really uncomfortable

The gate experience at LAX was abysmal (same for the arrival experience two days prior). Despite the LAX -> SAT schedule of two flights daily, our departure gate was at a smaller hub that we had to be bussed to from Terminal 4. Fortunately, I arrived at LAX extra early and had time to spare, but if I had not known, I might have missed my flight. I looked at the LAX airport map in the AA app and there was no indication of the additional boarding process. Lastly the gate area we were bussed to was crowded with limited food and beverage options. On flight, the fight attendant was hospitable and attentive, the flight was smooth, and AA's free (and working) wifi for AA members were all on the positive side.

Very hard to beat a British Airways international flight…the crews are always so amazing! One flight attendant that really stood out was Emma…she was very personable and accommodating with any request we had!!

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

My bag was not loaded on my flight. it was not communicated to me until i was waiting for my bag at my destination. there was no confirmation of when my bag was arriving and no way to track it.

The flight was delayed for more than 3 hours the flight attendant was so angry, it was my first flight with JetBlue but i don’t think I flight with them again.

This was the first flight I've taken since pre-pandemic. I was pleased with how orderly the boarding and disembarking went. The seats were comfortable. I loved that there was no "first class'. The attendants and passengers I met were all very friendly and welcoming.

Boarding was extremely slow and disorganized. Onboard crew was unfriendly.

There was a screen but no earphones that could use the older input so I could listen to anything.

Jet blue just had great service overall! Only a little turbulence heading out of Austin, otherwise the jet stream helped the speed of the trip!

Boarding was quick and efficient. The flight crew were friendly. There were limited food options available on the flight. The pocket guide said there would be salad and sandwich sections available on flights over 3.5 hours. The only food available were snack boxes. And those were limited as well. My flight was over 5 hours. The entertainment system worked well. I had both extra legroom seats and regular coach seats. The seats were not very comfortable. The entertainment controls in the armrest made it difficult to rest my arm without changing the channel on my neighbors TV. Overall, my experience was mediocre.

Boarding was fast, easy, and we landed early. The entertainment system was very buggy and kept resetting throughout the flight.

Everything you need to know for your flight from Seattle to Massachusetts

Information on your arrival and departure airports